Home / 1,035,009.72-1,428,069.36-870,064.98

Finding the Fourth Proportional to 1,035,009.72, 1,428,069.36 and 870,064.98

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Solution

The fourth proportional to 1,035,009.72, 1,428,069.36 and 870,064.98 is: 1,200,484.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,035,009.72 : 1,428,069.36 = 870,064.98 : x
  2. Step 2: Convert to fraction form
    1,035,009.72/1,428,069.36 = 870,064.98/x
  3. Step 3: Cross multiply
    1,035,009.72x = 1,428,069.36 × 870,064.98
  4. Step 4: Simplify right side
    1,035,009.72x = 1,242,513,139,147.01
  5. Step 5: Solve for x
    x = 1,242,513,139,147.01/1,035,009.72
  6. Step 6: Final answer
    x = 1,200,484.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.